Excerpt: This item fit the ticket for wide photography both inside and out. Good construction, comes with a sturdy lens shade and solid lens cover. Has no issues with focus or calibration (I have it on a Canon 5dIII and tested it with a focus program and it is spot on).
Excerpt: As the Canon 11-24 lens is too expensive to me, so, I choose this one as my wide angle lens. Now, I got 11-24 wide angle zoom lens, 24-70 standard zoom lens and a 70-200 telephoto zoom lens.
The best part of this lens is the price, it is relatively cheap among the wide zoom lens.
Excerpt: Used this sigma 12-24 lens with my 5D mark3 without any problem, quality came out great.
I used this for my landscape or interior application photos and I knew it's an f4.5 lens so using a tripod is necessary at low light space.
Compare with canon 11-24 f4, this is much cheaper.
Excerpt: I have two of these 12-24 lenases; a 2004 version for Nikon and 2012 version for Canon. The earlier 12-24 was soft at the edges at wide apertures; but good at F8. Both are very good for archichitecture; interiors and landscapes
The later 2011 version is significantly better wide open; but does...
Excerpt: I use wide angle for architectural images and this lens is so great for my work. Almost no edge distortion when level, super wide angle and such a compact lens. I will be using this lens often.
Excerpt: I have been using this lens on my D700 for eighteen months now to shoot low light architectural interiors. The combination of the extreme wide angle & the exceptional low light capabilities of the camera have allowed me to capture images way beyond anything I could ever achieve before.
Summary: Great lens, works well with the Alpha 900.Good build quality very smooth and virtually silent auto focus. An excellent addition to anyone's collection who likes to shoot landscapes. Super fast delivery from Amazon.